Zune HD users should be able to download the latest firmware update now, and it's substantial enough to warrant grabbing ASAP. There's a speedier browser, predictive text entry (a la iPhone), and that's just the beginning. Updated: Update: The firmware upgrade went through just fine on my 32GB Zune HD, and I'm definitely seeing an improvement in the browser's speed. Before, it was mysteriously slow, especially compared to the iPod Touch's browser—there's no reason for that, especially giv....

